| 摘要 |
PROBLEM TO BE SOLVED: To provide a rail for a roller rack capable of attaining high load resistance and operational reliability, and excellent appearance and safety without any fear of a roller coming off a rail frame even if a large load is applied to the roller. SOLUTION: A plurality of the rollers 3 are rotatably mounted on a channel type rail frame 2 opened upward so as to rotate around the horizontal axis with part of the rollers protruded upward. Upper edges of both side walls of the rail frame 2 are bent so as to be folded inward. Center protrusive shafts 3a on both sides of each of the rollers 3 are inserted in bearing holes 5 drilled in inner vertical walls 4.
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